49th week of 2013 patent applcation highlights part 23 |
Patent application number | Title | Published |
20130320872 | LIGHT-EMITTING DIODE DRIVING CIRCUIT - A light-emitting diode (LED) driving circuit includes a power factor correction (PFC) circuit and a driving controller. The PFC circuit controls a power factor of the LED driving circuit. The LED driving circuit includes an inductor, a switch, a current detection circuit, and a time detection circuit. The inductor senses an inductor current and provide energy to at least one LED. The switch connected to the inductor is conducted according to a driving signal. The current detection circuit connected to the switch detects inductor current information. The time detection circuit connected to the switch detects an energy discharging time during which the inductor current decrease from a peak value to zero. The driving controller connected to the switch, the current detection circuit, and the time detection circuit outputs the driving signal to the switch according to the voltage level and the energy discharging time. | 2013-12-05 |
20130320873 | SENSING DEVICE, SENSING CHARGER AND SENSING EMERGENCY LAMP - A sensing device includes a sensing transmitting module and a sensing receiving module respectively mounted in a first housing and a second housing. And an output terminal of the sensing transmitting module and an input terminal of the sensing receiving module are provided with a sensing coil and an electromagnetic rod respectively, the first housing and the second housings are cooperated with each other, and the electromagnetic rod is inserted into the sensing coil, so that the sensing coil or the electromagnetic rod is placed in magnetic field generated by the electromagnetic rod or the sensing coil thereby generating sensing voltage. The sensing parts are formed of the sensing coil and the electromagnetic rod, which significantly reduces the amount of the copper wires in the sensing coil and the electromagnetic rod, therefore the sensing device has a smaller size, lighter weight and lower cost. | 2013-12-05 |
20130320874 | LIGHTING APPARATUS HAVING A LIGHTING MEANS COMPRISING AT LEAST ONE LED - The invention relates to a lighting apparatus ( | 2013-12-05 |
20130320875 | INTERFACE CIRCUIT FOR A LIGHTING DEVICE - An interface circuit for a lighting device is described, the interface circuit comprising
| 2013-12-05 |
20130320876 | Rejecting Noise Transients While Turning Off a Fluorescent Lamp Using a Starter Unit - A local minimum of a current monitoring signal is identified by a starter unit that turns off a fluorescent lamp without using a wall switch. Closing a main switch in the starter unit stops an illuminating current from flowing through a gas in the lamp. The local minimum of the current monitoring signal is reached when an increasing valid sample is identified following four valid samples. A sample is valid if it does not differ from the preceding valid sample by more than a threshold difference based on known properties of the signal. By skipping invalid samples, the local minimum is accurately determined to have been reached despite transient noise spikes in the signal that would trip any voltage threshold used to locate the local minimum. When the main switch is opened at a predetermined time after the local minimum, the illuminating current does not again flow through the gas. | 2013-12-05 |
20130320877 | Remote Control of a Legacy Fluorescent Lamp Fixture - A legacy-type fluorescent lamp fixture involves a magnetic ballast and a starter unit socket. Power savings are realized by using a retrofit fluorescent lamp assembly in place of the fluorescent lamp that would ordinarily by held in the fixture. The retrofit assembly may, for example, have a smaller fluorescent lamp. A digitally controlled electronic ballast within the retrofit assembly drives the smaller fluorescent lamp efficiently, thereby achieving power savings. In addition, an RF-enabled switch is installed in the starter unit socket. The RF-enabled switch communicates multi-bit digital control signals in serial fashion from the starter socket, through existing wires of the fixture, through the lamp holders of the fixture, and into the retrofit assembly. The electronic ballast receives these signals, decodes them, and in response turns on or turns off its lamp as commanded. Additional power savings are thereby achieved by keeping the lamp off when it is not needed. | 2013-12-05 |
20130320878 | SWITCHING MODULE OF ADJUSTING A VISUAL ANGLE AND RELATED BACKLIGHT SYSTEM - A switching module capable of adjusting a visual angle is disclosed. The switching module includes an edge-type optical substrate, a light source disposed by a side of the edge-type optical substrate, and an optical modulating component disposed between the light source and the edge-type optical substrate. The edge-type optical substrate has an emitting surface. The light source includes a plurality of light units. Each light unit can emit a beam to the edge-type optical substrate according to a predetermined angle. The optical modulating component can modulate divergence of the beam emitted from the light unit, so that the beam can be guided out of the edge-type optical substrate via the emitting surface according to the predetermined angle. | 2013-12-05 |
20130320879 | Light Emitting Device - A light emitting device includes a main body that defines an inner space therein and that includes a light-transmissive part, a light emitting unit disposed in the inner space, and an electrode. The electrode has a device-connecting portion electrically connected to and extending from the light emitting unit, a power-connecting portion disposed outwardly of the main body and electrically connected to an electric power source, and a resistance-configurable portion that extends between and that interconnects electrically the device-connecting portion and the power-connecting portion and that is configurable to set resistance of the electrode. | 2013-12-05 |
20130320880 | RMS RESPONDING VOLTAGE CONVERTER FOR LED LIGHTS - An RMS responding voltage converter for LED lights is disclosed. | 2013-12-05 |
20130320881 | CURRENT OVERSHOOT LIMITING CIRCUIT - This document discusses, among other things, an apparatus, system, and method to limit a current overshoot in an electronic component using a switched feedback circuit to precondition a gate of a transistor coupled to the electronic component. | 2013-12-05 |
20130320882 | INTEGRATED ON-TIME EXTENSION FOR NON-DISSIPATIVE BLEEDING IN A POWER SUPPLY - An example controller for a switched mode power supply includes a zero crossing detector, drive logic, and a logic gate. The zero-crossing detector generates a zero-crossing signal indicating a zero-crossing condition in the power supply. The drive logic generates a drive logic output signal in response to the zero-crossing signal and in response to a feedback signal, where the drive logic output signal is representative of an on-time of a switch to regulate an output of the power supply. The logic gate is coupled to receive a first signal representative of a current through the switch and a second signal representative of a zero-crossing time threshold. The logic gate is further coupled to extend the on-time of the switch until current through the switch reaches a zero-crossing current threshold or until the on-time of the switch reaches the zero-crossing time threshold. | 2013-12-05 |
20130320883 | DEVICE AND METHOD FOR INTERFACING A DIMMING CONTROL INPUT TO A DIMMABLE LIGHTING DRIVER WITH GALVANIC ISOLATION - A dimmer interface ( | 2013-12-05 |
20130320884 | DRIVE DEVICE FOR LIGHT-EMITTING ELEMENT - A drive device for a light-emitting element that improves accuracy while driving the light-emitting element at small currents for which a comparatively simple configuration is provided. The drive device includes detecting means, comparing means, a driving voltage source, and offset means. The detecting means detects a voltage corresponding to a current flowing through a first resistor for current detection. The first resistor is coupled to a light-emitting element in series. The comparing means compares a magnitude of the detection voltage of the detecting unit with a comparison voltage. The driving voltage source applies a voltage corresponding to a comparison result by the comparing means to a series circuit of the light-emitting element and the first resistor. The offset means corrects the voltage corresponding to a current flowing through the first resistor by a correction voltage. | 2013-12-05 |
20130320885 | Audience Participatory Effect System and Method - A system for providing effects during an event includes a control device and multiple audience devices, where each of the audience devices are worn by or otherwise associated with individual members of the audience. Signals from an emitter on the control device control the effects on the audience devices. Lighting effects across an event audience may be achieved by varying the color, intensity, and timing of the activation of the LEDs on the audience devices. The signal from the control device emitter may be directional, such that only certain audience devices produce the desired lighting effect at any given time, and the movement of lighting affects through the audience may be dynamically controlled. | 2013-12-05 |
20130320886 | METHOD FOR CONTROLLING DISPLAY POWER OF TERMINAL AND TERMINAL FOR PERFORMING THE SAME - Provided are a method of controlling a power supply of a display unit of a terminal which can automatically restore the power supply of the display unit, and a terminal for performing the method. The method includes shutting off the power supply of the display unit within a preset time when a power supply shut-off event of the display unit occurs, and restoring the power supply of the display unit when a preset restoration condition is satisfied. | 2013-12-05 |
20130320887 | ACTIVE CONTROL TYPE OF VIBRATION ABSORBING DEVICE - The present invention provides a vibration absorbing device. A vibration absorbing device according to an exemplary embodiment of the present invention includes a first magnetic force generation member fixed to an external portion that is separated from a vibration source and a second magnetic force generation member provided in one side of the vibration source. When vibration is generated by the vibration source, the direction and magnitude of a magnetic force of one of the first magnetic force generation member and the second magnetic force generation can be controlled such that the second magnetic force generation member can move in a direction for attenuating the vibration of the vibration source. | 2013-12-05 |
20130320888 | SYSTEM COMPRISING AN ELECTRICALLY EXCITED MACHINE - The invention relates to a system comprising an n-phase separately excited electrical machine ( | 2013-12-05 |
20130320889 | BLOWER SYSTEM AND METHOD FOR CONTROLLING THE SAME - A blower system, including a permanent magnet motor and a wind wheel. The permanent magnet motor includes a stator assembly, a rotor assembly, and a motor controller. The rotor assembly includes a salient pole rotor including a rotor core and magnets embedded in the rotor core. The motor controller includes a microprocessor, a frequency inverter, and a sensor unit. The sensor unit inputs a phase current or phase currents, a phase voltage, and a DC bus voltage into the microprocessor. The microprocessor outputs a signal to control the frequency inverter which is connected to a winding of the stator assembly. The ratio between an air gap of the motor and the thickness of the magnets ranges from 0.03 to 0.065, and the ratio between the length of a pole arc and the length of the magnets ranges from 0.8 to 1.0. | 2013-12-05 |
20130320890 | MOTOR CONTROLLER - Phase voltage setting means defines an actual current phase region including a current phase error range based on parameters including an individual difference of at least any one of a motor and an inverter, defines a stable operation current phase region in which a rotor position can be detected through sensorless control, and sets, as a target current, an electric current obtained by adding a predetermined phase difference corresponding to the number of revolutions detected by revolution number detecting means to an electric current set by current vector control such that the actual current phase region is within the stable operation current phase region. | 2013-12-05 |
20130320891 | CONTROL METHOD AND DEVICE FOR AN ELECTRIC MACHINE - A method is described for controlling an electric machine during a motor startup operation with the aid of a power electronics device, in particular for use in a motor vehicle. The power electronics device includes a plurality of controllable power switches which are connected for the purpose of supplying an electrical current to the electric machine in polyphase form. The power electronics device is controlled in such a way that the electric machine outputs a startup torque, and the control of the power electronics device for outputting the startup torque takes place in such a way that the switching position of at least two of the power switches is changed, with the result that the power switches are subjected to a more uniform load. | 2013-12-05 |
20130320892 | MOTOR DRIVE CIRCUIT - A motor drive circuit includes: an advance angle setting correcting device having a correction reference cycle according to a reference advance angle count value, in which a correction amount is calculated as a ratio of the correction reference cycle to a cycle of a detection signal indicating a detected frequency proportional to a motor rotation speed, and in which an advance angle setting signal is obtained by multiplying the correction amount by a proportionality factor; and an advance angle setting device in which the advance angle correction value is added to the reference advance angle count value thereby outputting an advance angle setting signal, wherein a drive command signal containing a rotation speed information based on a target rotation speed is externally fed, the motor rotation speed is variably controlled in response to the drive command signal, and the detection signal is fed from a rotation speed detecting device. | 2013-12-05 |
20130320893 | ELECTRIC POWER STEERING APPARATUS - When a current sensor fails, instead of a normal-time motor control section, an abnormal-time motor control section drives and controls a motor. The abnormal-time motor control section detects a timing at which motor current becomes zero in a state in which all the switching devices are turned off. Every time the motor current becomes zero, the abnormal-time motor control section sets an ON time corresponding to steering torque, and turns on the switching devices corresponding to the direction of the steering torque for the ON time. With this operation, an average current corresponding to the steering torque flows through the motor, whereby deterioration of the followability of steering assist is suppressed. | 2013-12-05 |
20130320894 | PROTECTION CIRCUIT FOR A D.C. BRUSHLESS MOTOR PUMP - A protection circuit for a D.C. brushless motor pump in the present invention is to be installed on a driving circuit. The driving circuit is installed on a motor of the D.C. brushless motor pump. The motor consists of a rotor set and a stator set, while the protection circuit contains a micro-processing unit, a driving unit, a comparison unit and a signal source. The micro-processing unit is electrically connected with the driving unit, the comparison unit is electrically connected with the micro-processing unit while the signal source is electrically connected with the comparison unit. The signal source is a voltage signal produced by the motor itself when the rotor set is operated. The comparison unit can convert the signal source into a rotating speed value of the rotor set, and the micro-processing unit can function to supervise and control rotating speeds of the motor. | 2013-12-05 |
20130320895 | STEERING CONTROL APPARATUS - A steering control apparatus includes a direct current power source, a three-phase alternating current motor, and a motor driving circuit. An emergency switching element is provided on at least two phases of a three-phase power supply line connected to the three-phase alternating current motor within the motor driving circuit, and the emergency switching element is turned off when an abnormality occurs such that the motor driving circuit is disconnected from the three-phase alternating current motor. The emergency switching element is a MOSFET, and the MOSFETs are provided in pairs in each of the two phases of the three-phase power supply line. Further, parasitic diodes of the pairs of MOSFETs are disposed in opposite orientations to each other. | 2013-12-05 |
20130320896 | MODULAR INVERTER ARRANGEMENT - An arrangement for a modular inverter includes a number of power semiconductors and cooling elements, where the cooling elements are connected to the power semiconductors for cooling the power semiconductors. The power semiconductors and the cooling elements are disposed around a center axis of the arrangement in such a manner that they demark a channel around the center axis in which a cooling medium is able to flow in the direction of the center axis. The arrangement includes a first tube-shaped ring film capacitor around the center axis of the arrangement. The power semiconductors are arranged between the cooling elements and an inner surface of the first tube-shaped ring film capacitor. | 2013-12-05 |
20130320897 | MOTOR CONTROL DEVICE - It is an object of the present invention to provide a motor control device that can improve stability of sensorless control of a permanent magnetic synchronous motor. Rotor position detecting means ( | 2013-12-05 |
20130320898 | MEANS AND METHOD FOR ALIGNING HALL SENSORS LOCATION IN A BRUSHLESS DC MOTOR WITH HALL SENSORS - A method for aligning Hall sensors location in a brushless DC motor with Hall sensors, the method comprises driving the motor by a sensorless driving system for getting a first commutation phase signal; sending said first commutation phase signal to a sensorless position control unit to be processed thereby for getting an optimal commutation phase point, processing a Hall sensor signal as said motor is running by a Hall sensor circuit unit for getting a second commutation phase signal, and comparing said second commutation phase signal with said optimal commutation phase point by a signal comparing and processing unit to get a phase shifting data for aligning said Hall sensors location. | 2013-12-05 |
20130320899 | BIASING CIRCUIT FOR HALL SENSOR AND HALL AMPLIFIER IN MOTOR DRIVING CIRCUIT - Disclosed herein are a biasing circuit for a hall sensor and a hall amplifier in a motor driving circuit, the biasing circuit including: a regulator installed inside a singled packaged chip, supplied with external power, and regulating the external power in voltage appropriate for a circuit to supply the regulated voltage; the hall amplifier supplied with the voltage regulated from the regulator, receiving an output signal from the hall sensor outside the chip, and amplifying the output signal to output the amplified signal; first and second resistors supplied with the voltage from the regulator to generate an input voltage common mode (VCM) of the hall amplifier; and third and fourth resistors supplied with the voltage from the regulator to generate an input VCM of the hall sensor. | 2013-12-05 |
20130320900 | SYSTEM AND METHOD FOR TRACTION MOTOR CONTROL - A control method includes monitoring changes in torque produced by a traction motor when an excitation frequency of current supplied to the traction motor changes, determining if the torque produced by the traction motor decreases when the excitation frequency of the current supplied to the traction motor increases, and responsive to the torque produced by the traction motor decreasing when the excitation frequency increases, preventing the excitation frequency of the current supplied to the traction motor from increasing further. | 2013-12-05 |
20130320901 | CIRCUIT ARRANGEMENT FOR OPERATING A LOAD HAVING A REACTIVE CHARACTERISTIC - A circuit arrangement is for operating a load having a reactive characteristic on an AC power supply. The circuit arrangement enables the best possible reactive power compensation, that is, enables operation close to a cos θ of 1, in order to increase the overall efficiency of the arrangement or to achieve optimal energy savings. In order to control critical operating states, a feedback loop is provided that supplies a control current to a further reactive circuit element. This further circuit element is arranged parallel to the load or to the power factor correction capacitor, and is acted upon by a control current such that the control current counteracts a change in the reactive component of the load. The control current is derived from the load current as a variable proportional to the load current. In this way, a reactor for optimizing electromagnetic consumption is created. | 2013-12-05 |
20130320902 | MOTOR DRIVING CIRCUIT AND ELECTRONIC APPARATUS USING THE SAME - A motor driving circuit for driving a motor, includes: a detecting circuit configured to detect a detection signal indicative of a current state of the motor; a command value generating unit configured to generate a command value indicative of a target state of the motor; an error amplifier configured to generate an error signal by amplifying an error between the detection signal and the command value; a pulse width modulator configured to generate a pulse signal; and an output circuit. The command value generating unit is configured to provide a variation to the command value. | 2013-12-05 |
20130320903 | METHOD AND CONTROLLER FOR AN ELECTRIC MOTOR WITH SWITCH TESTING - For each phase of a controller, a pair of semiconductor switches comprises a high side switch and a low side switch. A direct current voltage bus provides electrical energy to the semiconductor switches at a test voltage level less than a full operational voltage level. A measuring circuit is adapted to measure the direct current bus voltage. A data processor determines that a deficiency in a tested, related semiconductor switch is present if the measured direct current bus voltage decreases or collapses upon activation of a particular semiconductor switch in the same phase of the controller, or if other sequential test results indicate a deficiency. If the deficiency in the related semiconductor switch is present the processor may prevent the voltage supply from providing the full operational voltage to the direct current data bus to prevent damage to the motor or the controller, for example. | 2013-12-05 |
20130320904 | ELECTRONIC DEVICE AND METHOD FOR MONITORING FAN - A method of monitoring a fan of a second electronic device. A first electronic device controls a baseboard management controller (BMC) of the second electronic device to return parameter values, the returned parameter values including temperature values of the second electronic device, and actual speed values of a fan of the second electronic device. The first electronic device records the returned parameter values and returned time of the returned parameter values. Upon acquiring standard speed values corresponding to the temperature values, the first electronic device draws a graph representing a relation between the actual speed values and the determined standard speed values corresponding to the returned time to monitor the fan. | 2013-12-05 |
20130320905 | ELECTRIC MOTOR DRIVE APPARATUS AND ELECTRIC POWER STEERING APPARATUS HAVING THE SAME - An electric motor drive apparatus includes multiple inverter sections arranged corresponding to winding sets of a motor, multiple relays that controls power supplies to the inverter sections, and a control unit. Each inverter section and corresponding winding set are referred to as a system. The control unit includes an obtaining section that obtains a winding current, a determination section that determines a fault occurrence, a specifying section that specifies a faulty system in which the fault occurs, an interrupting section that controls the relay corresponding to the faulty system to interrupt the power supply to the faulty system, and a vibrating section that controls the inverter section of a properly-operating system to add a vibration to an output torque from the electric motor. The vibrating section gradually increases a vibration component of the vibration added to the output torque from the electric motor. | 2013-12-05 |
20130320906 | ELECTRIC POWER STEERING SYSTEM AND METHOD FOR CHECKING INITIAL DRIVING THEREOF - Provided are an electric power steering system and a method for checking an initial driving thereof, in which no additional redischarging and charging time is required by simultaneously determining a freezing of a safety switch and/or a safety switch off of a sub MCU, which monitors a state of a main MCU, thereby shortening initial driving time of the electric power steering system. The electric power steering system includes: a power supply; a motor configured to generate steering auxiliary power; a safety switch provided between the power supply and the motor and configured to control supply of power; a main MCU configured to control an operation of the safety switch; and a sub MCU configured to monitor a state of the main MCU. The main MCU applies an on driving signal to the safety switch, receives front and rear stage voltages of the safety switch, and determines that the safety switch has been frozen and/or a safety switch off function of the sub MCU has failed, when there is no potential difference between the received front and rear stage voltages. | 2013-12-05 |
20130320907 | SIGNAL DUTY DETECTING APPARATUS AND MOTOR DRIVING APPARATUS HAVING THE SAME - There are provided a signal duty detecting apparatus detecting a duty of a pulse width modulation (PWM) signal by counting a signal, among signals present in a preset period of the PWM signal, having a predetermined level or higher and a motor driving apparatus having the same. The signal duty detecting apparatus includes: a level detector detecting levels of an input signal; a counter counting the levels detected by the level detector; and a duty calculator calculating a duty of the input signal based on the levels counted by the counter. | 2013-12-05 |
20130320908 | SERVO CONTROLLER HAVING FUNCTION FOR CORRECTING AMOUNT OF EXPANSION/CONTRACTION OF BALL SCREW - A servo controller, capable of controlling the motion of a movable body with high accuracy, without depending on the position of the movable body which is moved on a ball screw. The servo controller has a position command generating part which generates a position command value; a velocity command generating part which generates a velocity command value based on the position command value and a position detection value; a torque command generating part which generates a torque command value based on the velocity command value and a velocity detection value; and a position compensation calculating part which calculates an amount of expansion/contraction of the ball screw based on a distance from the servomotor to a nut threadably engaged with the ball screw and the torque command value, and calculates a position compensation based on the amount of expansion/contraction. | 2013-12-05 |
20130320909 | MOTOR STARTER CIRCUIT, PARTICULARLY FOR COMPRESSORS OF REFRIGERATORS - A motor starter circuit particularly for compressors of refrigerators, comprising a starter device ( | 2013-12-05 |
20130320910 | CONTROLLING PEM FUEL CELL VOLTAGE DURING POWER TRANSITIONS AND IDLING - The controller ( | 2013-12-05 |
20130320911 | CHARGE CONTROLLER FOR VEHICLE - A charge controller is used for a vehicle equipped with a rotating machine, a main battery for storing electrical power supplied to the rotating machine, a power storage device, and a solar power generator. The charge controller includes a power converter, a first charging section, a step-up section, and a second charging section. The power converter is interposed between the solar power generator and the storage device. The first charging section controls the power converter to store electrical power generated by the solar power generator in the storage device. The step-up section steps up and outputs the power stored in the power strange device to the main battery. The second charging section controls the step-up section to charge the main battery with the power stored in the power storage device. | 2013-12-05 |
20130320912 | SYSTEM FOR CHARGING AN ENERGY STORE, AND METHOD FOR OPERATING THE CHARGING SYSTEM - The invention relates to a system for charging at least one energy storing cell ( | 2013-12-05 |
20130320913 | MOBILE CHARGER DEVICE - A mobile charger device including a first connector that electrically connects a first mobile device to the mobile charger device, a second connector that electrically connects a second mobile device to the mobile charger device, a connector element that electrically connects the first mobile device electrically connected by the first connector with the second mobile device electrically connected by the second connector, and a switch operable to select which one of the first and second mobile devices supplies power through the connector element to the other of the first and second mobile devices. | 2013-12-05 |
20130320914 | BATTERY BALANCE APPARATUSES - A battery balance apparatus with a battery pack of N battery cells, an inductor, a first rectifying switch, a second rectifying switch, a third rectifying switch, a fourth rectifying switch and N+1 controllable switches. | 2013-12-05 |
20130320915 | Gated Diode, Battery Charging Assembly and Generator Assembly - A gated diode may include source zones and a drain zone which are both of a first conductivity type. The source zones directly adjoin a first surface of a semiconductor die and the drain zone directly adjoins an opposite second surface of the semiconductor die. The drain zone includes a drift zone formed in an epitaxial layer of the semiconductor die. Base zones of a second conductivity type, which is the opposite of the first conductivity type, are provided between the drain zones and the source zones. The drift zone further includes adjustment zones directly adjoining a base zone and arranged between the respective base zone and the second surface, respectively. A net dopant concentration in the adjustment zone is at least twice a net dopant concentration in the second sub-zone. The adjustment zones precisely define the reverse breakdown voltage. | 2013-12-05 |
20130320916 | MULTI-CHARGING DEVICE FOR PORTABLE TERMINAL - A multi-charging device for a portable terminal is provided. The device includes a cabinet, a plurality of charging bodies accommodated in the cabinet, a plurality of slots formed in each of the plurality of charging bodies, a plurality of charging terminals each provided in a corresponding one of the slots, and a power supply unit supplying power to each of the charging terminals. When the portable terminal is inserted into one of the slots, a charging terminal provided in the slot is connected to the inserted portable terminal. | 2013-12-05 |
20130320917 | Mobile Power Device with Projection - The creation provides a kind of project function for the mobile power device, which including control circuit boards, power contact tools, charging the battery units; Both of the power connecter tools and the battery charging units that connect control circuit board to charge and discharge the power so that it can works fluently. The micro-projection which including micro-projection modules and micro-projection lens; the signal, however, is also can delivery elements and messages to control the circuit board. Therefore, this mobile power device creation which with projection functions, it can provide other electric devices to charge and with delivery signal the electric devices of others to the micro-projection device, making the function of project. | 2013-12-05 |
20130320918 | ENERGY SUPPLY APPARATUS HAVING A FIRST POWER AS WELL AS A METHOD FOR OPERATING SAID ENERGY SUPPLY APPARATUS - An energy supply apparatus, in particular for static use, particularly in a building, for which one or a plurality of consumer loads is to be supplied at least temporarily with a first power L | 2013-12-05 |
20130320919 | PORTABLE BATTERY CHARGER - A portable device for charging and discharging batteries simultaneously via having a servomotor controlled automatically by a microcontroller unit using software is described. The servomotor arm is controlled and a circuit is open or closed at the command of the software based upon the voltage of each one of the batteries connected to the device; the temperature of the electrical wires and the amperage of the battery o batteries being charged. A second device for charging/discharging batteries is described having a servomotor controlled automatically by a microcontroller unit using software. The servomotor arm is controlled the charging/discharging process, which is carried out in two independent circuits in an alternated manner by moving the servomotor arm from one circuit to another based upon the same mentioned parameters. The charging/discharging process in both devices is also automatically stop and continues at a predetermined periods of time by the microcontroller via a software. | 2013-12-05 |
20130320920 | Electric Vehicle Supply Equipment Cable Detection - Systems, methods, devices, and computer-readable media detect a status of a cable | 2013-12-05 |
20130320921 | ARRANGEMENT AND PROCESS FOR HOUSING ELECTRIC VEHICLE SUPPLY EQUIPMENT - The invention is directed to arrangement and process for housing a battery charger. The battery charger housing arrangement includes a battery charger configured to provide power to charge a vehicle battery, a reinforcement structure configured to hold the battery charger, and a housing configured to cover the reinforcement structure and the battery charger. The housing forms a waterproof covering to protect the battery charger from the environment, a charge cable extends from the housing and is configured to connect to and charge a vehicle, and a window is arranged in the housing so that a user may operate the battery charger. The reinforcement structure is configured to structurally locate the housing in a stable non-movable location. | 2013-12-05 |
20130320922 | WAKE-BY-CONTROL PILOT CIRCUIT FOR ONBOARD BATTERY CHARGER - An on-board battery charging system for a plug-in electric vehicle has a charging unit for charging a high-voltage battery and a controller for controlling and managing current flow used to support charging related operations for the high-voltage battery. The controller may detect a connection between the on-board battery charging system and electric vehicle supply equipment (EVSE) and is configured to enter a sleep mode when a control pilot signal from the EVSE is either absent or indicative of a delayed charge mode. The charging system may include a wake-by-control pilot circuit operable to wake the controller from the sleep mode when the control pilot signal is detected and when the control pilot signal transitions from a non-zero static DC voltage to an active PWM signal. | 2013-12-05 |
20130320923 | CHARGING DEVICE AND METHODS FOR CONTROLLING A CHARGING DEVICE - A charging device for use with an electric vehicle including a power storage device. The charging device includes a power conduit configured to electrically couple the power storage device to the charging device. The charging device includes a first protection device configured to electrically isolate the charging device from the power storage device if a current flowing through the power conduit exceeds a current limit. The charging device also includes a controller configured to control the current flowing through the power conduit if the current flowing through the power conduit causes an integration threshold to be exceeded, wherein the integration threshold is representative of a predetermined amount of current that is enabled to flow through the power conduit over a predetermined period of time. | 2013-12-05 |
20130320924 | BATTERY-CHARGING DEVICE AND METHOD OF CHARGING BATTERIES - A battery-charging device and a method of charging batteries. The device comprises a housing, at least one hopper configured to receive a plurality of batteries, and at least one indexing barrel adjacent to the hopper and having a charging slot configured to receive and support one battery. The indexing barrel is structured to move the battery supported by the charging slot to and from a charging station comprising a set of charging terminals configured to contact terminals of the battery for charging the battery. The device further comprises at least one dispensing chute and at least one rejection chute. The chutes are configured to receive batteries that have been charged or rejected by the device, wherein each of the chutes is structured to contain several batteries. | 2013-12-05 |
20130320925 | CHARGER AND CHARGING ASSEMBLY HAVING THE SAME - A charger includes a reel box, an input port, an output port, restore mechanisms, and a power converter. The input port includes an input cable received in the reel box and an input connector connecting with the input cable. The input cable extends beyond the reel box a certain distance. The output port includes an output cable received in the reel box and an output connector connecting with the output cable. The output cable extends beyond the reel box a certain distance. The restore mechanisms is received in the reel box. The power converter is received in the reel box. One end of the power converter connects with the input port, and the other end of the power converter connects with the output port. | 2013-12-05 |
20130320926 | METHOD AND APPARATUS FOR ADAPTING A BATTERY VOLTAGE - An apparatus and method for adapting a voltage of a battery pack is provided through a switch control logic coupled to the cells of the pack. The switch control logic determines the output voltage generated by the cells and an operating state of the battery pack. The switch control logic is configured to selectively switch the plurality of cells between a series cell configuration and a parallel cell configuration based upon the determined current output voltage and the operating state of the battery pack. | 2013-12-05 |
20130320927 | POWER SUPPLY APPARATUS AND POWER SUPPLY SWITCHING METHOD - A power supply apparatus includes a plurality of power storage modules that are connected in parallel and a backup power storage module that is connected in parallel with the plurality of power storage modules. When charging or discharging of at least one of the power storage modules is disabled, charging of the other power storage modules is inhibited, discharging of the backup power storage module is permitted, states of charge of the backup power storage module and the other power storage modules are detected, and charging of the backup power storage module and the other power storage modules is permitted in accordance with the detected states of charge. | 2013-12-05 |
20130320928 | CARBON CATHODES FOR FLUORIDE ION STORAGE - The invention provides fluoride ion host electrodes for use in electrochemical cells. These electrodes include carbon nanomaterials having a curved multilayered structure and a film or particles of a metal-based material. The metal-based material may react with fluorine and may be a transition metal such as silver. The invention also provides electrochemical cells in which the fluoride host electrode serves as at least one electrode of the cell. | 2013-12-05 |
20130320929 | SELF-CONTAINED POWER SUPPLY - Disclosed are various embodiments for a self-contained power supply. A container is configured to be placed separate from a powered structure, such as a house or place of business. The container houses a power supply unit that includes a battery bank and an inverter. The battery bank receives multiple charging currents from multiple power sources, such as a grid power source and an auxiliary power source. The inverter uses electrical energy stored by the battery bank to provide an output current to the powered structure. | 2013-12-05 |
20130320930 | POWER STORAGE SYSTEM AND SECONDARY BATTERY CONTROL METHOD - A power storage system includes a plurality of secondary battery packs and an upper controller. When causing an additional discharge secondary battery pack that is not being discharged to start being discharged by connecting the additional discharge secondary battery pack in parallel with a discharging secondary battery pack that is being discharged, in a state in which some of the secondary battery packs are being discharged, the upper controller predicts discharge start timing at which inter-terminal voltages of the additional discharge secondary battery pack and the discharging secondary battery pack correspond to each other. Subsequently, the upper controller causes the additional discharge secondary battery pack to start being discharged at the discharge start timing. | 2013-12-05 |
20130320931 | POWER-SOURCE CONTROL APPARATUS FOR VEHICLE - A battery, a regenerative generator, a capacitor capable of storing power generated by the regenerative generator, and a DC/DC convertor capable of allowing an output current to flow up to a specified permissible limit value are provided. The capacitor is connected to a first circuit portion connecting the regenerative generator and the DC/DC convertor. The battery is connected to a second circuit portion connecting the DC/DC convertor and electric loads. Thereby, power from the capacitor is supplied to electric loads by way of the DC/DC convertor until the output current of the DC/DC convertor reaches the specified permissible limit value, whereas power from the battery is supplied to the electric loads after the output current of the DC/DC convertor has reached the specified permissible limit value. A specified electric load is turned OFF when the power from the battery is supplied. | 2013-12-05 |
20130320932 | INTEGRATED BATTERY MANAGEMENT - For managing a battery, a first switch is in electrical communication with a first connection and a second connection. At least one of a load and a power supply is in electrical communication with the first connection. In addition, an inductor is in electrical communication with the second connection. A second switch is in electrical communication with the first connection and in electrical communication with the common. The third switch is in electrical communication with a third connection and in electrical communication with the battery. The fourth switch is in electrical communication with the third connection and in electrical communication with the common. The inductor is also electrical communication with the third connection. | 2013-12-05 |
20130320933 | ELECTRONIC DEVICE - An electronic device receives a voltage from a power source. The electronic device comprises a voltage converting module, an energy storing module, a switching module, and an illuminating module. The voltage converting module converts the voltage provided by the power source into a working voltage. The energy storing module is capable of being charged by the working voltage. The switching module is connected between the voltage converting module and the illuminating module. The illuminating module is capable of emitting light for indicating the voltage of the energy storing module. When the working voltage is suddenly changed, the switching module turns off and cuts off an electrical connection between the voltage converting module and the illuminating module. The illuminating module stops emitting light. | 2013-12-05 |
20130320934 | CHARGING CONTROL DEVICE - In a charging control device, a determining unit individually determines whether a charging path and a vehicle are in a connected state or non-connected state based on a current value detected by a current detecting means. The state of connection with the vehicle is detected not by an exclusive sensor as it is done in the prior art but by using a current detection result by the current detecting means. Hence the cost for detecting the state of connection with the vehicle can be reduced. | 2013-12-05 |
20130320935 | METHOD FOR DAMPING TORSIONAL OSCILLATIONS IN A DRIVE TRAIN COMPONENT - A method for damping torsional oscillations in a drive train component, in particular a gearbox, in particular in a power production plant, includes adjusting a load on the output side in the drive train as a function of a difference between a rotational speed of an input shaft of the drive train component and a rotational speed of an output shaft of the drive train component. | 2013-12-05 |
20130320936 | CURRENT CONTROLLER AND GENERATOR SYSTEM - A current controller for controlling plural stator currents of plural stator windings of an electrical machine, in particular a generator, is provided, wherein the plural windings are separately connectable to a converter. The current controller includes a positive-sequence current controller configured to provide a first voltage command, in particular in a rotating dq+ frame, based on the plural stator currents; a negative-sequence current controller configured to provide a second voltage command, in particular in the dq+ frame, based on the plural stator currents. Further, the current controller includes a summation system for adding the first voltage command and the second voltage command to obtain a summed voltage command based on which the converter is controllable. | 2013-12-05 |
20130320937 | SYSTEM AND METHOD TO STABILIZE POWER SUPPLY - A system to stabilize power supply includes a turbomachine synchronized to a grid. The system also includes a first controller configured to control field excitation of the turbomachine, and a second controller configured to block operation of the first controller based on a rate of the change in frequency of the grid. | 2013-12-05 |
20130320938 | METHOD AND SYSTEM FOR CONTROLLING A GENERATOR - A method for controlling a generator having a rotor with a plurality of magnets and a first stator winding and a second stator winding, electrically separate from the first stator winding is provided. The rotor rotates around a rotation axis perpendicular to a radial direction relative to the stator windings. The method includes allowing flow of a first electric current through the first stator winding, thereby generating a first radial force having a first magnitude and acting between the first stator winding and the rotor, and allowing flow of a second electric current through the second stator winding, thereby generating a second radial force having a second magnitude and acting between the second stator winding and the rotor, wherein the first magnitude is different from the second magnitude resulting in a net generator generated radial force generated by the first stator winding and the second stator winding at the rotor. | 2013-12-05 |
20130320939 | INDUCTIVE LOAD POWER SWITCHING CIRCUITS - Power switching circuits including an inductive load and a switching device are described. The switches devices can be either low-side or high-side switches. Some of the switches are transistors that are able to block voltages or prevent substantial current from flowing through the transistor when voltage is applied across the transistor. | 2013-12-05 |
20130320940 | POWER FLOW CONTROL USING DISTRIBUTED SATURABLE REACTORS - A magnetic amplifier includes a saturable core having a plurality of legs. Control windings wound around separate legs are spaced apart from each other and connected in series in an anti-symmetric relation. The control windings are configured in such a way that a biasing magnetic flux arising from a control current flowing through one of the plurality of control windings is substantially equal to the biasing magnetic flux flowing into a second of the plurality of control windings. The flow of the control current through each of the plurality of control windings changes the reactance of the saturable core reactor by driving those portions of the saturable core that convey the biasing magnetic flux in the saturable core into saturation. The phasing of the control winding limits a voltage induced in the plurality of control windings caused by a magnetic flux passing around a portion of the saturable core. | 2013-12-05 |
20130320941 | Magnetic Field Sensor with Improved Sensitivity to Magnetic Fields - A magnetic field sensor has internal power supply generating circuits to generate a higher operating voltage for a magnetic field sensing element, resulting in a magnetic field sensor with improved sensitivity to magnetic fields. | 2013-12-05 |
20130320942 | VOLTAGE REGULATOR CIRCUIT WITH ADAPTIVE CURRENT LIMIT AND METHOD FOR OPERATING THE VOLTAGE REGULATOR CIRCUIT - A voltage regulator circuit and a method for operating the voltage regulator circuit are described. In one embodiment, a voltage regulator circuit includes an input terminal to receive an input signal from a power interface, an output terminal to output an output signal using the input signal, an output voltage monitor circuit configured to compare the voltage of the output signal with a predetermined voltage threshold, and a current limit circuit configured to limit current flowing on a path from the input terminal to the output terminal to a transient current limit level. The transient current limit level is lower than a predefined current limit threshold of the power interface. Other embodiments are also described. | 2013-12-05 |
20130320943 | SWITCHING REGULATOR WITH INTEGRATED RESONANT CIRCUIT FOR RIPPLE FILTERING - A switching regulator IC contains both switching regulator circuitry and an inductor and a capacitor connected in parallel to form a resonant circuit having an associated notch filter frequency response arranged such that, when connected to receive the regulated output voltage, the resonant circuit attenuates the ripple component. This is accomplished by matching the resonant notch to the ripple's fundamental frequency, either manually or automatically. In addition, the resonant circuit's inductor and capacitor can act in concert with decoupling capacitors coupled to the load to form a low pass filter which attenuates harmonics of the ripple's fundamental frequency. | 2013-12-05 |
20130320944 | VOLTAGE REGULATOR, AMPLIFICATION CIRCUIT, AND COMPENSATION CIRCUIT - An amplification circuit includes a first amplifier, a second amplifier, and a power supply rejection ratio (PSRR) boost circuit. The first amplifier has an output. The second amplifier has an input coupled to the output of the first amplifier and a power node coupled to a power supply line. The PSRR boost circuit is coupled between the input of the second amplifier and the power supply line, and the PSRR boost circuit comprises a resistance device and a capacitance device connected in series with the resistance device. | 2013-12-05 |
20130320945 | STRUCTURE AND METHOD FOR A SWITCHED CIRCUIT DEVICE - The present disclosure provides a switched voltage converter for receiving a source voltage and producing an output voltage. The voltage converter comprises a switch controller and a switched device communicatively coupled to the switch controller. The switch controller adjusts the output voltage by controlling a duty cycle of the switched device. The switched device is sized such that it is characterized by a drain-to-source breakdown voltage greater than or substantially equal to the source voltage and the output voltage and is further characterized by a hot-carrier injection rating less than the source voltage or the output voltage. In further embodiments, the switched device is sized such that it is characterized by a drain-to-source breakdown voltage greater than or substantially equal to a peak operating voltage and is further characterized by a hot-carrier injection rating less than the peak operating voltage. | 2013-12-05 |
20130320946 | MINIMUM ENERGY POINT TRACKING BUCK CONVERTER - This invention involves with a low power IC (Integrated Circuit) with high energy efficiency. This invention describes a Buck converter that can track the minimum energy point of the load. It works by estimating input energy of every sensing period, taking advantage of energy consumption curve of IC in sub-threshold. Energy estimation is implemented with counting conducted pulses, while maintaining constant input energy of each pulse by regulating output voltage and ON time with digital control circuit. With digital control circuit, minimum energy point can be tracked with a lookup table stored inside. Most of this invention's control circuit is digital, with benefits of low power consumption and small chip area. | 2013-12-05 |
20130320947 | SYSTEM AND METHOD FOR SUPPLYING POWER - The present invention relates to a system for supplying power and a method for supplying power using the same. In a system for supplying power including a load device and a power device for supplying power to the load device, the power device includes an output control unit and a power circuit for outputting power with required voltage and current of the load device, and the load device includes an input control unit and a load for receiving the power from the power circuit. | 2013-12-05 |
20130320948 | Current Control Device - A current control device capable of performing widely applicable failure detection without a motor rotation speed sensor is provided. A current control semiconductor element includes, on a same semiconductor chip, a transistor that drives load, a current detection circuit that detects current of the load, a compensator that calculates an on-duty of the transistor from a current command value and a current value output from the current detection circuit, and a PWM timer that generates a pulse turning on the transistor on the basis of the on-duty. A microcontroller sends the current command value to the current control semiconductor element, receives the current value output from the current detection circuit and the on-duty output from the compensator from the current control semiconductor element, and detects failure of the current control semiconductor element on the basis of the received current value and on-duty. | 2013-12-05 |
20130320949 | ELECTRONIC DEVICE FOR AVERAGE CURRENT MODE DC-DC CONVERSION - An average current mode buck-boost DC to DC converter has a buck stage coupled between an input voltage source terminal and an output terminal. A boost stage is coupled between the input voltage source terminal and the output terminal. A current ramp control circuit generates a ramp signal for driving the buck and boost stages, the ramp signals being coupled to the buck and boost stages. A constant voltage related to the desired output voltage by a constant is applied directly to both a voltage control feedback loop for adjusting the output voltage and directly to an input to the current ramp control circuit, whereby the output voltage can be shifted from one voltage to another by feedforward control. | 2013-12-05 |
20130320950 | CONTROL METHOD FOR REDUCING THE AUDIO NOISE - A control method for reducing audio noise is disclosed. The method includes the steps of: providing an input power source; providing a power source converter having a component with a mechanical resonant frequency, coupled to the input terminal or the output terminal of the power source converter; providing an output capacitor and a load connected in parallel therebetween; making the power source converter operate in a burst mode; and controlling the electrical energy transferred from the input terminal to the output terminal of the power source converter during an operating period of every burst cycle, so as to reduce the audio noise of the power source converter. | 2013-12-05 |
20130320951 | EXPANDING DC/DC CONVERTER INTO MULTIPHASE DC/DC CONVERTER - A DC/DC converter configurable for operating as a multiphase DC/DC. A controller produces a master drive signal for controlling a primary power switch to produce the output DC signal at a desired level. Multiple secondary power stages are coupled between the input and the output nodes for producing an output DC signal. Each of the multiple secondary power stages has at least one secondary power switch responsive to the input DC signal for producing the output DC signal. An expander system configures the DC/DC converter for operation in a multiphase DC/DC conversion mode. The expander system is responsive to the master drive signal for producing multiple slave drive signals respectively supplied to the multiple secondary power stages for controlling secondary power switches. The slave drive signals have phases shifted with respect to the master drive signal and with respect to each other. | 2013-12-05 |
20130320952 | MONOLITHICALLY INTEGRATED HEMT AND CURRENT PROTECTION DEVICE - A transistor device includes a high electron mobility field effect transistor (HEMT) and a protection device. The HEMT has a source, a drain and a gate. The HEMT switches on and conducts current from the source to the drain when a voltage applied to the gate exceeds a threshold voltage of the HEMT. The protection device is monolithically integrated with the HEMT so that the protection device shares the source and the drain with the HEMT and further includes a gate electrically connected to the source. The protection device conducts current from the drain to the source when the HEMT is switched off and a reverse voltage between the source and the drain exceeds a threshold voltage of the protection device. The protection device has a lower threshold voltage than the difference of the threshold voltage of the HEMT and a gate voltage used to turn off the HEMT. | 2013-12-05 |
20130320953 | LONG PULSE DROOP COMPENSATOR - One example embodiment may include a power supply system. The power supply system may include a main capacitor and a boost converter. The main capacitor is used to generate an electrical pulse. The boost converter is configured to be coupled to the main capacitor. Additionally, the boost converter includes a compensator supply including an energy storage capacitor that can store electrical energy. The boost converter also includes and a compensator inductor that receives the electrical energy from the compensator supply and is configured to supply electrical energy to the main capacitor when the main capacitor is generating the electrical pulse. | 2013-12-05 |
20130320954 | SWITCHED-MODE VOLTAGE CONVERTER WITH ENERGY RECOVERY SYSTEM - Devices, systems and methods are provided for a switched-mode voltage converter system with energy recovery. The device may include a first voltage converter circuit including a boost voltage node and an output voltage port coupled to a load. The first voltage converter circuit configured to deliver energy from the boost voltage node to the load in a first mode, and to deliver energy from the load to the boost voltage node in a second mode. The device may also include a second voltage converter circuit coupled to an energy source and to the boost voltage node, the second voltage converter circuit configured to convert a first voltage associated with the energy source to a second voltage associated with the boost voltage node. | 2013-12-05 |
20130320955 | TEMPERATURE COMPENSATED OSCILLATOR WITH IMPROVED NOISE PERFORMANCE - An oscillator system addresses power supply noise and temperature dependence. The system includes a multi-stage regulator circuit that receives a supply voltage and generates a lower voltage oscillator supply voltage that is less noisy than the supply voltage. A charge pump circuit receives the oscillator supply voltage and the oscillator output signal and supplies the regulator circuit with a boosted voltage. A reference generator circuit supplies a reference signal that is used to determine the oscillator supply voltage. The reference signal varies with temperature and is used to offset the temperature coefficient of the oscillator. | 2013-12-05 |
20130320956 | LEVEL SHIFTER CIRCUIT AND GATE DRIVER CIRCUIT INCLUDING THE SAME - There are provided a level shifter circuit and a gate driver circuit including the same. The level shifter circuit includes: a plurality of switching devices connected to a predetermined DC power supply through a resistor and operated by different driving signals; a gain conversion unit operated by first signals output from the plurality of switching devices, respectively, and generating second signals having a level within a predetermined range of the first signals; and a noise removal unit connected to at least one output terminal among the plurality of switching devices to prevent malfunctioning of the gain conversion unit, wherein the gain conversion unit inputs the second signals to a high side gate driver circuit through an inverter circuit. | 2013-12-05 |
20130320957 | DC-DC CONVERTER AND OPERATING METHOD THEREOF - A DC-DC converter includes an interface to receive data having voltage values. A first circuit carries out a voltage transition from a previously received voltage value to a received voltage value (VSEL). A second circuit activates or inactivates the first circuit in response to an activation signal or a stop signal provided by the interface. A third circuit configures the second circuit so that, when new data including a new voltage value is received during a voltage transition, the second circuit interprets the stop signal as an activation signal for the first circuit to carry out a new voltage transition. The setting circuit sets at least one parameter needed by the first circuit to carry out the new voltage transition in response to the new data and before the end of the new voltage transition. | 2013-12-05 |
20130320958 | Box wizard and the rock wizard - A template set for position of electrical boxes that is a two piece tool system comprising of
| 2013-12-05 |
20130320959 | Power Device Analyzer - A device analyzer for analyzing power devices. An example device analyzer comprises a collector supply to generate supply signal pulses with selected voltage or current levels and a supply signal pulse width at a high current. The supply signal pulses are applied at a collector supply source terminal when DUT is connected to conduct current between the collector supply source terminal and a collector supply common terminal. A supply switch closes or opens the DUT current path in narrow pulses having a narrow pulse width narrower than the supply signal pulses to conduct the supply signal pulses as narrowed sweep signal pulses having the high current capacity of the collector supply current. The supply switch alternatively regulates the current in the current path at constant current levels. Other modules capable of high power test capabilities may also be added. | 2013-12-05 |
20130320960 | APPARATUS AND METHODS FOR MEASURING A CURRENT - An apparatus and methods for measuring a current flowing into an electrical device are described. In the apparatus, a current sensing circuit has at least one monolithic device, which in turn has a positive operating voltage and a negative operating voltage. The current sensing circuit is coupled to a power supply for the electrical device and the at least one monolithic device is arranged to enable a signal representative of the input current from the power supply to the electrical device to be output. The apparatus also has a power converter for converting a first voltage output by the power supply to a second voltage for supply as the positive operating voltage and a voltage clamp arranged to clamp the difference between the positive and negative operating voltages. | 2013-12-05 |
20130320961 | CURRENT SENSING DEVICES AND METHODS - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments are asymmetric in shape and/or composition (e.g., bobbin shape, size, and/or winding configuration) so as to account for asymmetries in the magnetic field distribution around a bus bar, or to accommodate its shape in a more compact form factor, and/or to improve the immunity to the effects of an external magnetic field. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 2013-12-05 |
20130320962 | Measuring Instrument for Testing Voltage - A measuring instrument, in particular a voltage tester, is provided having two probes which are arranged in separate housings through which connecting cables extend. The housings are magnetically attractive, because of either a first magnet arranged on a first one of the housings for cooperation with the magnetic material of the other housing, or a corresponding pair of opposed magnets provided in magnetically attractive relation on the two housings, respectively. Recesses are provided in the second housing opposite the corresponding magnets of the first housing. Corresponding pivot ribs extend circumferentially around the housings in the space between the first one magnet and the adjacent probe end, thereby to permit accurate spacing of the probes during the taking of a test measurement. | 2013-12-05 |
20130320963 | System and Method for Evaluating a Calibration of a Magnetometer on a Mobile Device - A method and system are provided for evaluating a calibration of a magnetometer on a mobile device. The method includes obtaining a parameter associated with the calibration, determining a component of the parameter along an axis of the magnetometer and determining a calibration quality indicator using the component. | 2013-12-05 |
20130320964 | System and Method for Calibrating a Magnetometer on a Mobile Device - A method and system are provided for calibrating a magnetometer on a mobile device. The method includes initiating a calibration of the magnetometer, determining an intermediate parameter associated with the calibration and when a characteristic indicative of a state of the mobile device is detected using the intermediate parameter, applying at least one stored calibration parameter associated with the state as an active calibration parameter. | 2013-12-05 |
20130320965 | System and Method for Operating a Mobile Device having a Magnetometer - A method and system are provided for operating a mobile device having a magnetometer. The method includes obtaining a plurality of error indicators associated with the magnetometer. At least two of the plurality of error indicators have different criteria for error. The method also includes determining an instruction for operating the mobile device using the plurality of error indicators. | 2013-12-05 |
20130320966 | System and Method for Calibrating a Magnetometer on a Mobile Device - A method and system are provided for calibrating a magnetometer on a mobile device. The method includes obtaining one or more pairs of magnetometer readings. Each pair includes a first reading and a second reading. For each pair of magnetometer readings, the method also includes determining a rotation axis direction and a rotation angle corresponding to a change in orientation of the mobile device between obtaining the first reading and the second reading and determining a rotation axis for the pair of magnetometer readings using the rotation axis direction and rotation angle. The method also includes determining a calibration parameter based on at least one property of one or more of the rotation axes. | 2013-12-05 |
20130320967 | ROTATION ANGLE DETECTION DEVICE - A rotation angle detection device includes a magnetic field generation section, a yoke, and a magnetism detection section. The magnetic field generation section has a first end portion and a second end portion. The yoke has such a tube shape that the magnetic field generation section and a rotation axis of a rotating body are located therein. The yoke has a gap at a part in a circumferential direction in a cross section perpendicular to the rotation axis. The magnetism detection section is disposed in the gap and outputs an electrical signal in accordance with a magnetic field strength in the gap. The magnetic field generation section is disposed in such a manner that a magnetic force line passing through the magnetic field generation section passes through the rotation axis regardless of the rotation angle of the rotating body and the rotation axis passes through the first end portion. | 2013-12-05 |
20130320968 | CURRENT SENSOR - A current sensor is disclosed which detects current values of bus bars through which three phase alternating currents flow, including shields which are provided for each of the bus bars, a flat board on which magnetic detecting elements corresponding to respective phases are mounted, and a housing inside which the shields and the board are accommodated, wherein the housing is formed with storage parts to store the shield, the board is formed with concave parts recessed in a direction opposite to the direction the board is assembled, the shields are formed with cut parts recessed in the direction the board is assembled, at parts that intersect with the board when the shields and the board are accommodated, and when the shields and the board are accommodated, a part of the board is located in the cut parts, and a part of the shields is located in the concave parts. | 2013-12-05 |
20130320969 | MAGNETIC FIELD SENSOR - A magnetic field sensor having a first magnetic sensor core for measuring a magnetic field in a first measuring direction, and a second magnetic sensor core for measuring a magnetic field in a second measuring direction, the first and second magnetic sensor cores having a shared magnetic anisotropy. | 2013-12-05 |
20130320970 | GEAR TOOTH SENSOR WITH PEAK AND THRESHOLD DETECTORS - Presented herein is a magnetic field sensor architecture that uses outputs of a peak detector and threshold detector operating in parallel to detect magnetic anomalies that may be associated with the target being sensed, e.g., a rotational ferromagnetic object such as a toothed gear, and use such detection to prevent sensor malfunction. The sensor includes an edge detection circuit and an error detection circuit. In one embodiment, the edge detection circuit includes circuits to detect edges (or transitions) of the threshold and peak detector output signals and the error detection circuit includes circuits, responsive to the edge detection circuit, to indicate an error when a “missed transition” occurs or a peak-to-peak value of an input signal as detected by the peak detector for a current cycle differs from an expected peak-to-peak value by a predetermined amount. | 2013-12-05 |
20130320971 | BIPOLAR MAGNETIC JUNCTION TRANSISTOR WITH MAGNETOAMPLIFICATION AND APPLICATIONS OF SAME - In one aspect of the present invention, the semiconductor device is a bipolar magnetic junction transistor (MJT), and includes a first non-magnetic semiconductor layer, a second non-magnetic semiconductor layer, and a magnetic semiconductor layer. The first non-magnetic semiconductor layer has majority charge carriers of a first polarity. The second non-magnetic semiconductor layer is disposed adjacent to the first non-magnetic semiconductor layer such that a first junction is formed at a first interface region between the first non-magnetic semiconductor layer and the second non-magnetic semiconductor layer. The magnetic semiconductor layer has majority charge carriers of the first polarity, and is disposed adjacent to the second non-magnetic semiconductor layer such that a second junction is formed at a second interface region between the second non-magnetic semiconductor layer and the magnetic semiconductor layer. | 2013-12-05 |